Overview: Tamoxifen is commonly used to treat certain types of breast cancer. It is also used to lower your risk of invasive breast cancer and keep some breast cancers from coming back. It blocks ...

Tamoxifen is a drug called an estrogen receptor antagonist, which works by blocking the receptor so that estrogen can’t work its usual effects within the body. Estrogen is an important hormone in the ...

Tamoxifen is a medication that has been used to treat breast cancer for more than 30 years. Though linked to weight gain, most studies do not support the link. Tamoxifen is a type of hormone therapy ...

Tamoxifen is both the most widely prescribed drug for breast cancer and preventative therapy worldwide. It is a synthetic derivative of triphenylethylene but was originally screened in a drug ...

Treatment cuts risk of death and recurrence, but some women still go without. July 29, 2011— -- For women diagnosed with hormone-sensitive breast cancer-- more than 150,000 in the U.S. each year- ...

Study finds a more than four-fold increased risk of ER negative second cancers SEATTLE — Aug. 25, 2009 — While long-term tamoxifen use among breast cancer survivors decreases their risk of developing ...

Some breast cancer cells are sensitive to estrogen. They need it to grow and spread. In order to fuel that growth, estrogen must attach itself to those breast cancer cells. Doctors think that ...

Tamoxifen is a common and important treatment to prevent breast cancer from recurring. A new study shows that variation in a patient's gut microbiome can impact how effective the treatment is. A new ...